Physarum pusillum
- kingdom: Protozoa
- phylum: Mycetozoa
- class: Myxomycetes
- order: Physarales
- family: Physaraceae
- genus: Physarum
- species: Physarum pusillum
Sainte-Anne-de-Bellevue
Quebec
Canada
Glendale
Colorado- Lahaina
Hawaii- Baton Rouge
Louisiana
United States